Legris 6316 62 00WP2 LIQUIfit Push-to-Connect Fitting, Inline Bulkhead Union, 1/2" Tube OD Inline bulkhead union for connecting two tubes through a panel Push-to-connect tube connections on both ends Bio-based polymer body Operating temperature range of -10 to +40 degrees C (14 to 104 degrees F) Meets NSF 51, NSF 61 C HOT, WRAS, FDA, ACS, 1935/2004/EC, and RoHS specifications